Healthcare has emerged as the top issue for voters headed into the midterm elections, but fewer than half of them say they are hearing a lot from candidates on the issue, according to a new poll released Thursday. Seven in 10 people list health care as "very important" as they make their voting choices, eclipsing the economy and jobs (64 percent), gun policy (60 percent), immigration (55 percent), tax cuts (53 percent) and foreign policy (51 percent). When asked to choose just one issue, nearly a third picked health care, according to the survey by the Kaiser Family Foundation. Still, midterm elections are traditionally a referendum on the president and his party, and that holds true this year as two-thirds of voters say a candidate's support or opposition to President Donald Trump will be a major factor in their voting decision, the poll found.